Biology
This stage takes place in the matrix of the
mitochondrion and is the aerobic phase and
requires oxygen:
  • It begins when the 2-carbon acetyl CoA joins
  • with a 4-carbon compound to form a 6-
  • carbon compound called Citric acid.
  • Citric acid (6C) is gradually converted back
  • to the 4-carbon compound ready to start the cycle once more.
  • The carbons removed are released as CO2.
  • The hydrogens, which are removed, join with
  • NAD to form NADH2.

Krebs Cycle

•1.Pyruvic acid
•2. AcetylCoA binds to pyruvic acid
•3. Forms Citric acid, carbon dioxide
and 2 hydrogen atoms are released
4. Further break down in sugar occurs.
5. Water plus Carbon dioxide and ATP
Cellular Respiration: Glycolysis Review Nov 28, 2006
1.There are five parts to an ATP molecule, They are
4. How is ATP different from ADP?
5. Energy released during cellular respiration is not used directly by the cell. Where is the energy stored until needed?
6. Give the full name of the ATP molecule
7. Give the full name of the ADP molecule
8. List 2 reasons we need ATP
12. Polysaccharide stored in liver and muscles
13. Site where glycolysis occurs
14. Molecule produced by hydrolysis of glycogen
16. Adenosine diphosphate is formed when
17. What is the first stage of cellular respiration
19. At the beginning of glycolysis what happens to the glucose molecule to prevent it from escaping the cell?
20. What has happened to the 6-carbon molecule by the end of glycolysis 1?